Sep 02 07:56:13.863 INFO checking matrix_display-0.2.0 against try#952c7dbfa2628309f557b367929ffc17af20b332 for pr-53851
Sep 02 07:56:13.863 INFO running: cargo +952c7dbfa2628309f557b367929ffc17af20b332-alt check --frozen --all --all-targets
Sep 02 07:56:13.863 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53851/try#952c7dbfa2628309f557b367929ffc17af20b332:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53851/worker-2/try#952c7dbfa2628309f557b367929ffc17af20b332:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +952c7dbfa2628309f557b367929ffc17af20b332-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 02 07:56:14.102 INFO blam! 6ae6285bb88b5366382e6090637c2db621292c726701820d2d687feeef3cb459
Sep 02 07:56:14.104 INFO running `"docker" "start" "-a" "6ae6285bb88b5366382e6090637c2db621292c726701820d2d687feeef3cb459"`
Sep 02 07:56:14.744 INFO kablam!     Checking matrix_display v0.2.0 (file:///source)
Sep 02 07:56:15.720 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` which must be used
Sep 02 07:56:15.720 INFO kablam!    --> src/lib.rs:258:9
Sep 02 07:56:15.720 INFO kablam!     |
Sep 02 07:56:15.720 INFO kablam! 258 | /         self.mat
Sep 02 07:56:15.720 INFO kablam! 259 | |             .enumerate_cells()
Sep 02 07:56:15.720 INFO kablam! 260 | |             .chunks(self.n_cols())
Sep 02 07:56:15.720 INFO kablam! 261 | |             .into_iter()
Sep 02 07:56:15.720 INFO kablam! ...   |
Sep 02 07:56:15.720 INFO kablam! 269 | |             })
Sep 02 07:56:15.720 INFO kablam! 270 | |             .collect::<Vec<_>>();
Sep 02 07:56:15.720 INFO kablam!     | |_________________________________^
Sep 02 07:56:15.720 INFO kablam!     |
Sep 02 07:56:15.720 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 02 07:56:15.720 INFO kablam!     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Sep 02 07:56:15.720 INFO kablam! 
Sep 02 07:56:16.435 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` which must be used
Sep 02 07:56:16.435 INFO kablam!    --> src/lib.rs:258:9
Sep 02 07:56:16.435 INFO kablam!     |
Sep 02 07:56:16.435 INFO kablam! 258 | /         self.mat
Sep 02 07:56:16.435 INFO kablam! 259 | |             .enumerate_cells()
Sep 02 07:56:16.435 INFO kablam! 260 | |             .chunks(self.n_cols())
Sep 02 07:56:16.435 INFO kablam! 261 | |             .into_iter()
Sep 02 07:56:16.435 INFO kablam! ...   |
Sep 02 07:56:16.435 INFO kablam! 269 | |             })
Sep 02 07:56:16.435 INFO kablam! 270 | |             .collect::<Vec<_>>();
Sep 02 07:56:16.435 INFO kablam!     | |_________________________________^
Sep 02 07:56:16.435 INFO kablam!     |
Sep 02 07:56:16.435 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 02 07:56:16.435 INFO kablam!     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Sep 02 07:56:16.435 INFO kablam! 
Sep 02 07:56:16.721 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.00s
Sep 02 07:56:16.725 INFO kablam! su: No module specific data is present
Sep 02 07:56:17.186 INFO running `"docker" "rm" "-f" "6ae6285bb88b5366382e6090637c2db621292c726701820d2d687feeef3cb459"`
Sep 02 07:56:17.333 INFO blam! 6ae6285bb88b5366382e6090637c2db621292c726701820d2d687feeef3cb459